Californian squid, also known as the bigmouth bass, is a native of California, USA. Through the gradual diffusion of introductions, it has now spread throughout the United States, Canada, and many other countries in the world. China was introduced in the early 1980s. Through trial and training, the fish proved to have the advantages of rapid growth, less disease, low temperature resistance, less prickly meat, delicious taste, and rich nutrition, and it was very popular with the market. The price per kilogram is generally more than 40 yuan, and the economic efficiency of breeding is higher. California squid can use a variety of breeding methods in various water areas in China. Single-cultivation and mixed-culture can obtain high yield and high efficiency. Therefore, it can become an important breeding object for adjusting freshwater aquaculture structure and developing high-quality, high-yield and high-efficiency fisheries within a short period of time. The pond culture techniques for California salmon are now described as follows:
I. Breeding mode and stocking amount Pond farming California carp has both polyculture and monoculture. Polyculture can be carried out using adult fish ponds, broodstock ponds, or by using fingerling ponds. Normally 300-400 kilograms of middle-low-yielding adult fish or fingerlings are used to make use of the natural bait fish in the pond. A size of 3-5 cm of California squid summer flowers can be placed between 20 and 50 tails per acre. If artificial feeding of bait fish is used, then 80-100 tails of California salmon are stocked per acre. After 5-6 months of feeding, the end of the pool specifications up to 200-300 grams per tail, 5 acres of California salmon production.
The pond produces Californian salmon. The size of the fish should be magnified. Generally can be placed 8-10 cm California salmon. Each acre stocking 1000-2000 tail, after more than 5 months of feeding, the end of the average size of more than 250 grams out of the pool, acres of pond production plus 1 state carp, fish species to enlarge some of the specifications. Generally can be placed 8-10 cm California salmon. Acre stocking 1000-2000 per acre, after 5 produced up to 150-300 kg.
Second, bait and feeding methods to raise California salmon, the key is to have enough palatable bait fish. At present, the main solutions are as follows: 1. Use fingerlings ponds to cultivate salmon fry. 2, the use of adult fish ponds, in the pond with a net out some ponds to raise fish. 3, buy wild fish. 4, buy special foods.
California salmon is a ferocious fish that feeds on live fish. If the amount of live fish fed is based on mantat, it can be fed 2-3 times of the stock. If it is by weight, it is generally 10%-12% of its total weight. Feed twice a day, ie 9-10 am once and 3-4 pm. If you feed dead fish, you must adopt domesticated diets. Generally, bait fish is cut into puffy fish pieces for high throwing, which causes it to fall into the water with a feeling of swimming, stimulating or inducing California salmon to swallow. After such 7-10 days of domestication, Californian squid generally rush to eat the fish that is thrown away. When the fish is thrown high, the location should be relatively fixed and the range should be larger in order to allow more Californian squid to grab it. Eat and balance it. At the beginning of stocking, California salmon were small in size, and their feeding capacity was not strong. The fed baitfish had to be fine and palatable. From September to December, the salmon of California grew up. The fish can be thrown in larger quantities, and the amount is more appropriate, so that it can eat well and accelerate growth. The artificial feeding method is the same as feeding the dead fish.
Third, feeding and management mainly focus on water quality management, water level management and fish pond management. California salmon is a fierce fish and prefers animal feed. It requires fresh water and rich dissolved oxygen. Therefore, water quality should not be excessive during the whole cultivation process.
Especially in summer and autumn, due to feeding a large amount of bait, it is easy to cause deterioration of water quality. We must insist on changing the water regularly and inject new water. Change the water every 10 days to half a month, changing one third of the water each time. Keeping the water's transparency at about 40 centimeters provides a good water environment for the growth of California salmon, and water level management is also important. In the early days of California salmon rearing, the pond water level may be shallow due to the low water temperature. In July and August, with the increase of water temperature and temperature, it is necessary to gradually increase the pond water and expand the breeding space for its growth. In the flood season and the typhoon season, we must also do a good job of flood prevention and prevention of Taiwan to prevent flooding and fish escape. The environmental management of the fish pond is mainly to make the fish pond clean and quiet. California squid likes to clean the quiet environment. Leftover bait pieces, foods, pond weeds and surface garbage should be promptly removed. Keeping the environment quiet and feeding outside the patrol pond every day is generally not to be bothered and frightening, so as to facilitate its quiet and proper growth.
Fourth, fish disease prevention California salmon in pond culture process, the general disease is less. The fish diseases found so far are mainly parasitic diseases such as saprophytic disease, acne disease and anchorhead lice. Sacrifice, hemorrhoids with salt solution bath, the effect is higher. For parasites such as oystercatchers, 0.5-0.7 PPM of trichlorfon can be used to disperse the whole pool, and the control effect is ideal.
I. Breeding mode and stocking amount Pond farming California carp has both polyculture and monoculture. Polyculture can be carried out using adult fish ponds, broodstock ponds, or by using fingerling ponds. Normally 300-400 kilograms of middle-low-yielding adult fish or fingerlings are used to make use of the natural bait fish in the pond. A size of 3-5 cm of California squid summer flowers can be placed between 20 and 50 tails per acre. If artificial feeding of bait fish is used, then 80-100 tails of California salmon are stocked per acre. After 5-6 months of feeding, the end of the pool specifications up to 200-300 grams per tail, 5 acres of California salmon production.
The pond produces Californian salmon. The size of the fish should be magnified. Generally can be placed 8-10 cm California salmon. Each acre stocking 1000-2000 tail, after more than 5 months of feeding, the end of the average size of more than 250 grams out of the pool, acres of pond production plus 1 state carp, fish species to enlarge some of the specifications. Generally can be placed 8-10 cm California salmon. Acre stocking 1000-2000 per acre, after 5 produced up to 150-300 kg.
Second, bait and feeding methods to raise California salmon, the key is to have enough palatable bait fish. At present, the main solutions are as follows: 1. Use fingerlings ponds to cultivate salmon fry. 2, the use of adult fish ponds, in the pond with a net out some ponds to raise fish. 3, buy wild fish. 4, buy special foods.
California salmon is a ferocious fish that feeds on live fish. If the amount of live fish fed is based on mantat, it can be fed 2-3 times of the stock. If it is by weight, it is generally 10%-12% of its total weight. Feed twice a day, ie 9-10 am once and 3-4 pm. If you feed dead fish, you must adopt domesticated diets. Generally, bait fish is cut into puffy fish pieces for high throwing, which causes it to fall into the water with a feeling of swimming, stimulating or inducing California salmon to swallow. After such 7-10 days of domestication, Californian squid generally rush to eat the fish that is thrown away. When the fish is thrown high, the location should be relatively fixed and the range should be larger in order to allow more Californian squid to grab it. Eat and balance it. At the beginning of stocking, California salmon were small in size, and their feeding capacity was not strong. The fed baitfish had to be fine and palatable. From September to December, the salmon of California grew up. The fish can be thrown in larger quantities, and the amount is more appropriate, so that it can eat well and accelerate growth. The artificial feeding method is the same as feeding the dead fish.
Third, feeding and management mainly focus on water quality management, water level management and fish pond management. California salmon is a fierce fish and prefers animal feed. It requires fresh water and rich dissolved oxygen. Therefore, water quality should not be excessive during the whole cultivation process.
Especially in summer and autumn, due to feeding a large amount of bait, it is easy to cause deterioration of water quality. We must insist on changing the water regularly and inject new water. Change the water every 10 days to half a month, changing one third of the water each time. Keeping the water's transparency at about 40 centimeters provides a good water environment for the growth of California salmon, and water level management is also important. In the early days of California salmon rearing, the pond water level may be shallow due to the low water temperature. In July and August, with the increase of water temperature and temperature, it is necessary to gradually increase the pond water and expand the breeding space for its growth. In the flood season and the typhoon season, we must also do a good job of flood prevention and prevention of Taiwan to prevent flooding and fish escape. The environmental management of the fish pond is mainly to make the fish pond clean and quiet. California squid likes to clean the quiet environment. Leftover bait pieces, foods, pond weeds and surface garbage should be promptly removed. Keeping the environment quiet and feeding outside the patrol pond every day is generally not to be bothered and frightening, so as to facilitate its quiet and proper growth.
Fourth, fish disease prevention California salmon in pond culture process, the general disease is less. The fish diseases found so far are mainly parasitic diseases such as saprophytic disease, acne disease and anchorhead lice. Sacrifice, hemorrhoids with salt solution bath, the effect is higher. For parasites such as oystercatchers, 0.5-0.7 PPM of trichlorfon can be used to disperse the whole pool, and the control effect is ideal.
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